Shortblock 25cc
Genuine OEM Part - Manufacturer #753-06523
Shblk asm:ac-2.1
Genuine OEM Part - Manufacturer #753-04087
Shblk:31cc:n/c:-9
Genuine OEM Part - Manufacturer #753-04826
Short block
Genuine OEM Part - Manufacturer #753-05450
Does not come threaded
Genuine OEM Part - Manufacturer #753-06416